* save state
* walkAsOf by cs test passed
* cs search for plain state
* save state
* fix accounts tests
* refactor walkAsOf account tests
* fix storage test
* refactor walkAsOf storage tests
* fix lint
* fix test
* save state
* save state
* add test with fixed bits
* fmt
* add stages check
* fix lint
* fix lint
* remove obsoleted methods
* Produce less garbage in GetState
* Still playing with mem allocation in GetCommittedState
* Pass key by pointer in GetState as well
* linter
* Avoid a memory allocation in opSload
* Use uint256.Int rather than common.Hash for storage values to reduce memory allocation in opSload & opSstore
* linter
* linters
* small clean up
* introduce PlainStateReader with fallbacks
* no 10.000 changes in tests
* even less iterations
* remove even more iterations
* add `go run ./cmd/geth --syncmode staged --plainstate` flag
* fix serialization calls
* make a more sensible file default
doesn’t affect anything, because this flag is always overriden when parsing CLI. but still.
* GetCurrentAccountIncarnation
* Incarnation should be read by StateReader, not StateWriter
* Use GetHistoricalAccountIncarnation in DbState
* RemoteReader ReadAccountIncarnation
* Handle the case where a contract has self-destructed, then Eth sent to it, then it got recreated again
* CheckChangeSets and thin history
* small code de-duplication
* small code clean-up
* Fix an error in mutation.getNoLock
* CheckChangeSets: truly make historyfile = chaindata by default
